14 results about "Antimony trichloride" patented technology

The application relates to a preparation method of a TiO2 / Sb2O3 / PSAC heterojunction sterilization composite material, which comprises the following steps: 1) adding a cationic surfactant, tetrabutyl titanate, antimony trichloride or antimony pentachloride into deionized water in sequence and stirring until the solution is white; 2) placing a FOSS crucible with coal-tar pitch-based spherical activated carbon into a high-pressure reaction kettle with concentrated nitric acid, heating, washing with deionized water until neutral, and naturally air-drying; 3) placing the dried coal-tar pitch-based spherical activated carbon into the white solution, stirring, finally adding sodium hydroxide, stirring, and then placing into a high-pressure reaction kettle, heating and keeping for a period of time; and naturally cooling, centrifugalizing, washing and drying. The application effectively combines the adsorption performance and the photocatalytic performance of the activated carbon through a hydrothermal one-step in-situ method, increases the mechanical performance, and can have high sterilization efficiency under the excitation of sunlight.

The invention relates to the technical field of electrochemical water treatment, in particular to a preparation method of a self-supporting antimony-doped tin dioxide nanoflower electrode, which comprises the following steps: dissolving trisodium citrate dehydrate and antimony trichloride in absolute ethyl alcohol; then adding water and stannous chloride dehydrate to form a precursor solution; heating the precursor solution, and naturally cooling; after cooling, carrying out solid-liquid separation on the bottom mud, and then cleaning and drying to obtain antimony-doped tin dioxide powder; taking antimony-doped tin dioxide powder, a pore-forming agent and a binder, grinding the materials until the materials are uniformly mixed, and transferring the materials into a tabletting mold for pressure casting to obtain a blank; and calcining the green body to obtain the product. Nano-flower-shaped antimony-doped tin dioxide powder is prepared, in the die casting and sintering process, due to the fact that nano-flower petals of the nano-flower-shaped antimony-doped tin dioxide powder are mutually staggered, a connection mode similar to a mortise and tenon joint mode is formed, and compared with nanospheres, the binding force between the powder is enhanced; and the mechanical strength, the electrochemical active area and the catalytic activity of the electrode are improved.

This application relates to the field of zinc-based battery technology and discloses a method for preparing a negative electrode current collector for zinc-nickel batteries. The negative electrode current collector includes a three-dimensional porous copper substrate and a tin-antimony functional layer formed on the surface of the substrate. The preparation method involves immersing the three-dimensional porous copper substrate in a functional deep eutectic solvent and performing a low-temperature in-situ chemical conversion reaction at a preset temperature of 80–120°C. The functional deep eutectic solvent is prepared from choline chloride, urea, anhydrous stannous chloride as a tin source, anhydrous antimony trichloride as an antimony source, and imidazole as a reaction regulator. This invention utilizes the copper substrate as a reducing agent to generate a tin-antimony functional layer that is firmly bonded to the substrate in situ. This method is a one-pot operation with a simple process and no wastewater generation. The obtained current collector can effectively inhibit zinc dendrite growth, improving the cycle life and safety of the battery.

The invention discloses a preparation method of an antimony trioxide composite flame retardant, which is specifically implemented according to the following steps: pretreating a catalytic cracking poising agent to obtain a poising agent solution, and adding antimony trichloride into hydrochloric acid; dropwise adding an antimony trichloride solution into the poising agent solution, and stirring for 3-5 hours to obtain a first mixed solution; standing to enable precipitates in the first mixed solution to settle to the bottom, clarifying supernatant liquid, then pouring out the supernatant liquid, and filtering bottom turbid liquid to obtain a first filter cake; adding water into the first filter cake, dispersing to obtain a first turbid solution, adding an alkaline solution into the first turbid solution, neutralizing to obtain a second turbid solution, filtering the second turbid solution to obtain a second filter cake, washing the second filter cake, and drying to obtain the antimony trioxide composite flame retardant. The preparation method of the antimony trioxide composite flame retardant is simple in process, low in raw material cost, high in additional value and environmentally friendly.

The invention relates to the technical field of antimony extraction, in particular to an antimony ore smelting process which comprises the following preparation steps: S1, mixing crushed ultralow antimony ore with a sulfur source and a reducing agent in an inert atmosphere, and performing microwave-assisted sulfuration roasting at 450-550 DEG C to convert antimony tetroxide into volatile antimony trisulfide; s2, mixing the vulcanized calcine with calcium chloride, bentonite and water to prepare pellets of 10-15 mm, performing chloridizing roasting in a weak oxidizing atmosphere at 650-750 DEG C, and condensing volatile gas to obtain antimony trichloride; and S3, antimony trichloride is fed into a molten pool smelting furnace, a reducing agent and oxygen-enriched air are sprayed, metal antimony and chlorine-containing flue gas are obtained through reduction smelting at the temperature of 1150-1250 DEG C, and the flue gas is recycled to prepare calcium chloride for recycling. According to the method, through a low-temperature vulcanization-chlorination-molten pool reduction closed-loop metallurgical system, efficient enrichment and short-process extraction of antimony are achieved, and the metal recovery rate is gt; the cyclic utilization rate of calcium chloride is gt; the method has the advantages of being high in recovery rate, low in energy consumption, clean and environmentally friendly, and is suitable for recycling treatment of the ultralow-grade antimony ore.

The present invention relates to an improved process for the preparation of 2-bromo-5-fluorobenzotrifluoride comprising, reacting 3-fluorobenzotrifluoride with brominating agent in the presence of antimony catalyst selected from antimony trichloride (SbCl3), antimony pentachloride (SbCl5) or mixture(s) thereof, to provide 2-bromo-5- fluorobenzotrifluoride with higher yield and purity

The invention relates to the field of heat-insulating glass preparation, in particular to a heat-insulating glass preparation method based on E-51 / ATO, which comprises the following steps: 1, pouring tin tetrachloride pentahydrate and antimony trichloride as precursors into a stainless steel high-pressure kettle with a para-polyphenol lining, and sealing to obtain an ATO dispersion solution; 2, the ATO dispersion solution is centrifuged and washed with ethyl alcohol and deionized water respectively, and dried nanometer ATO powder is obtained; 3, weighing E-51, an amine curing agent and acetone, uniformly mixing, pouring the nano ATO powder, and continuously stirring to obtain uniform ATO / E-51 slurry; and 4, fixing the pretreated glass substrate on a platform, injecting the ATO / E-51 slurry into a spray pen material cup, spraying the ATO / E-51 slurry on the surface of the glass substrate, and drying and curing a sprayed sample to obtain the ATO / E-51 heat-insulating glass with a compact surface structure. ATO nano-particles with the particle size of 10 nm are directly prepared through an optimized solvothermal method, and then agglomeration of the nano-particles is effectively prevented through an accurate mass ratio and high-speed stirring synergistic dispersion process.

The invention discloses a preparation method of an antimony oxychloride composite flame retardant, which is characterized by specifically comprising the following steps: pretreating a catalytic cracking equilibrium agent to obtain an equilibrium agent solution, and adding antimony trichloride into hydrochloric acid to obtain an antimony trichloride solution; dropwise adding an antimony trichloride solution into the poising agent solution, and stirring for 3-5 hours to obtain a first mixed solution; adding an alkaline solution into the first mixed solution to neutralize until the pH is 7-8, standing and filtering to obtain a filter cake; and washing the filter cake, and drying to obtain the antimony oxychloride-based composite flame retardant. The preparation method of the antimony oxychloride composite flame retardant is simple in process, low in raw material cost, high in additional value and environment-friendly, and solves the problem of recovery of a catalytic cracking equilibrium agent.

The invention discloses a preparation method of a high-crystallinity Sb2S3 antimony sulfide film, which not only can be applied to a PEC photocathode, but also can be applied to the fields of solar cells, photoelectric detection and the like. According to the method, 2, 4, 6-trichlorophenol is used as an additive and dissolved in acetone together with antimony trichloride, and the high-quality Sb2S3 antimony sulfide thin film is obtained through chemical bath deposition. According to the method, the Sb2S3 precursor and the acetone solvent serve as raw materials, the interaction between Cl atoms and Sb atoms at the tail ends of 2, 4, 6-trichlorophenol molecules is utilized, the intermolecular interaction between the Sb2S3 precursor and the acetone solvent can be enhanced through the interaction, the number of Sb2S3 crystal nucleuses is reduced along with reduction of the supersaturation degree, and growth of the crystal nucleuses is further promoted. And the crystallization peak intensity is enhanced from 150 to 500. Meanwhile, the Fermi level of semiconductor antimony sulfide is reduced, P-type conductivity is enhanced, and therefore the performance of the antimony sulfide photoelectric cathode is improved.

The present application relates to triethyl antimony processing technical field, especially in kind of preparation triethyl antimony, including the following steps: under the protection of inert gas to the reaction bottle raw material antimony trichloride and ether solvent is added, and the atmospheric pressure reflux device is installed, and the stirring is started;Ethyl lithium ether solution is added dropwise to the reaction bottle, after dropwise addition is completed, 70~80 ℃ stirring reaction is kept for 3~6h;After the stirring reflux is finished, the solvent ether is distilled out first, and the triethyl antimony initial product is obtained;The vacuum distillation device is installed, and the triethyl antimony crude product is obtained by vacuum distillation;The obtained triethyl antimony crude product is subjected to twice vacuum rectification, and high-purity triethyl antimony is obtained, and the purity reaches 6N by nuclear magnetic resonance, ICP detection.Pure triethyl antimony is generated by the reaction of ethyl lithium and antimony trichloride under the protection of inert gas, the preparation method is safe and efficient, simple operation, raw material is easy to obtain, no by-product, high yield and high purity product.

The invention relates to the field of inorganic materials, in particular to a preparation method of antimony trioxide nanoparticles, which specifically comprises the following steps: uniformly mixing antimony sulfide ore with inorganic fused salt, transition metal oxide and a carbon material, grinding into powder, pressing the powder into blocks, smelting to obtain molten liquid, separating crude antimony from the molten liquid, dissolving the crude antimony with hydrochloric acid, and drying to obtain the antimony trioxide nanoparticles. Adding high-purity antimony powder, stirring and reacting to obtain an antimony trichloride crude solution, filtering the antimony trichloride crude solution, adding ammonia water and ionic liquid into the obtained filtrate, stirring and reacting, collecting a product, and drying. The inorganic molten salt contains metal fluoride, and antimony trioxide prepared by the method not only has a cubic crystal form, but also has a nano size, and is higher in economic added value and wider in application prospect.

The application provides an anode membrane assembly for treating high-salt organic wastewater and a preparation method thereof, and belongs to the technical field of water treatment. The preparation method of the anode membrane assembly comprises the following steps: (1) cleaning and etching of a titanium mesh substrate; (2) citric acid and ethylene glycol are poured into a beaker, tin tetrachloride SnCl4.5H2O and antimony trichloride SbCl3 are added while water bath heating, stirring and maintaining water bath heating to form a sol-gel; (3) the substrate is immersed in the sol-gel, and then drying is carried out in an electric heating air drying oven, the above steps are repeated, and the immersed and coated titanium mesh is placed into a muffle furnace for high-temperature calcination to obtain a titanium substrate tin-antimony anode membrane; (4) two pieces of the titanium substrate tin-antimony anode membrane are fixed on the two sides of a PVC membrane support respectively, and ABS glue is used for bonding and sealing at the edge, so that the anode membrane assembly is obtained. The application solves the technical problem that the high Cl ‑ concentration in high-salt wastewater affects the removal of organic matters by electro-oxidation.

This invention relates to the field of inorganic materials, specifically to a preparation process for electronic-grade antimony trioxide. The process involves dissolving antimony trichloride in anhydrous ethanol to obtain solution A; dissolving a thermosensitive polymer in deionized water and adjusting the pH to 9-10 with ammonia to obtain solution B; heating solution B to above 50°C; adding solution A to solution B; stirring the reaction; restoring to room temperature; collecting the product; washing; and drying. The antimony trioxide prepared by this invention exhibits excellent electrochemical performance and demonstrates superior cycle performance in lithium batteries.

The application relates to the technical field of metal powder material preparation, and particularly discloses a kind of antimony-doped cesium terbium chloride microcrystalline powder and a preparation method thereof.The chemical composition of the microcrystalline powder is Cs5Tb 1‑ x Sb x Cl8.6H2O, wherein x=0.05-0.30.The preparation method comprises the following steps: mixing cesium chloride, terbium chloride hexahydrate and antimony trichloride according to a molar ratio of 5:0.8:x; adding pyridine hydrochloride as a chlorine element supplement, wherein the amount of pyridine hydrochloride is 0.05-0.20 mmol per 1 mmol of CsCl; adding stearic acid as a process dispersant; and performing mechanical ball milling and freeze-drying combined treatment to obtain antimony-doped cesium terbium chloride microcrystalline powder with regular morphology and good dispersity.The application has simple process and mild conditions, can effectively inhibit particle agglomeration, improve the crystallinity and dispersion uniformity of the powder, and the prepared microcrystalline powder exhibits excellent optical performance.